Question

There are infinite black and white dots on a plane. ...​

Answer 1

Explanation:

You don't, because it's false. If all black dots happen to be on the line y=0 and white dots on the line y=π (and the rest of the plane is neither white nor black), there is no such pair.

Answer 2

Answer:

Orginally Answered: There are infinite

black and white dots on a plane. ... So we

can say that for each white dot there is

exist a black dot at unit distance because if

not than we end up colouring the full plane

with white color.